Pith Number

pith:NIKJFAFH

pith:2025:NIKJFAFHPGEHJ2GTYOZCI6WRQX

not attested not anchored not stored refs pending

Alternative writings of classical elastodynamics equations as a first order symmetric system

Dimitris Sfyris

arxiv:2501.04743 v1 · 2025-01-08 · physics.class-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NIKJFAFHPGEHJ2GTYOZCI6WRQX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T09:58:45.727819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a149280a7798874e8d3c3b2247ad185c2f7913c1d0b4f93f847e71911e7ebf0

Aliases

arxiv: 2501.04743 · arxiv_version: 2501.04743v1 · doi: 10.48550/arxiv.2501.04743 · pith_short_12: NIKJFAFHPGEH · pith_short_16: NIKJFAFHPGEHJ2GT · pith_short_8: NIKJFAFH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NIKJFAFHPGEHJ2GTYOZCI6WRQX \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6a149280a7798874e8d3c3b2247ad185c2f7913c1d0b4f93f847e71911e7ebf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a79fbf9b27fbde763ed68e3434d5cc7aafced7eab0f9111d0f59ce8c11c18673",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2025-01-08T08:37:21Z",
    "title_canon_sha256": "bbc9995f9ba4fc56ada3abe5d0768c518428a7d47f20f59cadb18407a0810d44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.04743",
    "kind": "arxiv",
    "version": 1
  }
}